Boston Scientific Ownership | Who Owns Boston Scientific?

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Boston Scientific Ownership Summary

Boston Scientific is owned by 91.00% institutional investors, 0.19% insiders, and 8.81% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 9.92% of BSX shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.16% of its assets in Boston Scientific shares.

BSX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Boston Scientific	91.00%	0.19%	8.81%
Sector	Healthcare Stocks	488.17%	11.08%	-399.26%
Industry	Medical Device Stocks	52.08%	10.61%	37.30%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	146.69M	9.92%	$15.76B
Vanguard group	132.89M	9.02%	$11.87B
Fmr	132.44M	8.99%	$11.83B
State street	63.96M	4.34%	$5.71B
Wellington management group llp	36.17M	2.46%	$3.23B
Primecap management co/ca/	34.66M	2.34%	$3.72B
Geode capital management	30.63M	2.08%	$2.73B
Capital world investors	28.52M	1.93%	$3.06B
Jpmorgan chase	26.24M	1.78%	$2.34B
Bollard group	20.08M	1.36%	$2.16B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Bollard group	20.08M	49.31%	$2.16B
Surgocap partners lp	2.72M	11.05%	$292.69M
Orbimed advisors	2.81M	7.57%	$302.17M
Avidity partners management lp	321.80K	6.89%	$34.56M
One river asset management	25.87K	6.12%	$2.78B
Fact capital, lp	158.88K	5.97%	$14.19M
Healthinvest partners ab	126.19K	5.80%	$13.55M
Integral health asset management	550.00K	5.41%	$59.08M
Sivik global healthcare	110.00K	5.17%	$9.82M
Iron triangle partners lp	495.01K	4.87%	$44.21M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	19.73M	0.23%	19.73M
Edgewood management	6.95M	2.37%	6.95M
Blackrock funding, inc. /de	146.69M	0.30%	5.02M
Wellington management group llp	36.17M	0.59%	3.34M
Bessemer group	2.92M	0.51%	2.90M

Top Sellers

Holder	Shares	% Assets	Change
Massachusetts financial services co /ma/	12.86M	0.44%	-3.66M
Fmr	132.44M	0.71%	-2.75M
Legal & general group	10.74M	0.25%	-2.74M
Winslow capital management	10.66K	0.00%	-2.65M
Bank of montreal /can/	2.38M	0.10%	-2.52M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	19.73M	0.23%	19.73M	$1.76B
Edgewood management	6.95M	2.37%	6.95M	$746.66M
Voloridge investment management	2.02M	0.80%	2.02M	$216.83M
Iron triangle partners lp	495.01K	4.87%	495.01K	$44.21M
Hudson bay capital management lp	484.00K	0.18%	484.00K	$51.99M

Sold Out

Holder	Change
Inlight wealth management	-2.00
Mendota financial group	-3.00
Goalvest advisory	-3.00
Capstone investment advisors	-5.00
University of texas/texas am investment managment	-8.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	1,717	1.54%	1,345,387,314	2.31%	90	1.15%	882	-0.56%	537	-2.01%
Mar 31, 2025	1,673	7.04%	1,313,233,213	-1.58%	88	1.08%	876	7.09%	545	11.00%
Dec 31, 2024	812	-43.92%	323,911,142	-75.12%	21	0.28%	437	-39.14%	244	-48.31%
Sep 30, 2024	1,448	5.93%	1,302,103,258	-1.70%	88	1.09%	718	0.42%	472	14.29%
Jun 30, 2024	1,367	7.72%	1,324,676,987	1.42%	90	1.14%	715	19.37%	413	-5.71%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	46.63M	3.16%	62.58K
Vanguard Total Stock Mkt Idx Inv	46.48M	3.14%	-1.08M
Vanguard 500 Index Investor	36.62M	2.47%	-5.36M
Vanguard PRIMECAP Inv	23.47M	1.58%	-1.65M
Fidelity 500 Index	18.75M	1.27%	150.85K
SPDR® S&P 500 ETF	18.33M	1.24%	-268.46K
Capital Group Growth Fnd of Amer Comp	18.18M	1.23%	486.91K
American Funds Growth Fund of Amer A	18.18M	1.23%	486.91K
SPDR® S&P 500® ETF	17.95M	1.21%	-74.73K
SPDR® S&P 500® ETF Trust	17.84M	1.21%	-93.53K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Sep 02, 2025	Fitzgerald Joseph Michael	EVP & Group Pres, Cardiology	Sell	$2.29M
Sep 02, 2025	Fitzgerald Joseph Michael	EVP & Group Pres, Cardiology	Sell	$2.98M
Aug 01, 2025	Fitzgerald Joseph Michael	EVP & Group Pres, Cardiology	Sell	$5.23M
Aug 01, 2025	Butcher Arthur C	EVP& Grp Pres, MedSurg & APAC	Sell	$1.81M
Jul 29, 2025	FUJIMORI YOSHIAKI	-	Sell	$310.38K

Insider Transactions Trends

Date	Buy	Sell
2025 Q3	-	7
2025 Q2	-	11
2025 Q1	-	26
2024 Q4	-	12
2024 Q3	-	6

BSX Ownership FAQ

Who Owns Boston Scientific?

Boston Scientific shareholders are primarily institutional investors at 91.00%, followed by 0.19% insiders and 8.81% retail investors. The average institutional ownership in Boston Scientific's industry, Medical Device Stocks, is 52.08%, which Boston Scientific exceeds.

Who owns the most shares of Boston Scientific?

Boston Scientific’s largest shareholders are Blackrock funding, inc. /de (146.69M shares, 9.92%), Vanguard group (132.89M shares, 9.02%), and Fmr (132.44M shares, 8.99%). Together, they hold 27.94% of Boston Scientific’s total shares outstanding.

Does Blackrock own Boston Scientific?

BlackRock is not among the top 10 institutional shareholders of Boston Scientific.

Who is Boston Scientific’s biggest shareholder by percentage of total assets invested?

Bollard group is Boston Scientific’s biggest shareholder by percentage of total assets invested, with 49.31% of its assets in 20.08M Boston Scientific shares, valued at 2.16B$.

Who is the top mutual fund holder of Boston Scientific shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Boston Scientific shares, with 3.16% of its total shares outstanding invested in 46.63M Boston Scientific shares.

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